B (来源：英语麦当劳－英语快餐EnglishCN.com)

Bad blood 恶感，仇恨

Bad news travels fast. 恶事传千里

Bad times make a good man. 乱世出英雄

bad and baggage 彻底；全部

a bag of bones 瘦的皮包骨头

bakesr's dozen 十三个

bark up the wrong tree 攻击错了目标，白费力气

Barking dogs seldom bite. 叫狗不咬人。

Be honest rather than clever. 与其聪明，不如诚实。

Be well off 富裕；小康的

The beacon does not shine on its own base. 灯塔不照自己。（当局者迷）

Bears are caught by honey. 蜂蜜是捉熊的诱饵。

Bear the brunt 承受打击

a bed of roses 安乐窝

Before gold, even kings take off their hats. 见钱眼开

beg the question 回避问题

Beggars cannot be choosers. 饥不择食

The beginning of all things is small. 万事起头小。

Behind the secnes 在幕后，私下

Believe no tales from the enemy's tongue. 敌人的话不可信

beside oneself with 因为 。。。 而精神失常；得意忘形

beside the point 偏离话题

The best physicians are Dr. Diet, Dr. Quiet, and Dr. Merry-man. 最好的医生是：节食、静养、愉快

Better ask the way than go astray. 宁可问路，不可迷路。

Better late than never. 迟座总比不做好

Better be poor than wicked. 人穷不能志短

between the devil and the blue sea 进退维谷

between you and me 天知地知，你知我知

Beware of a man who never speaks and of a dog never barks. 当心不语的人，提方不叫的狗。

Bide one's time 等待时机

a big mouth 夸夸其谈的人

Big mouthfuls often choke. 贪多嚼不烂。

A bird in the band is worth two in the bush. 一鸟在手胜于二鸟在林。

Bird of passage 漂泊不定的人

A bird may be known by its note, and a man by his talk. 以音知鸟，闻言而知其人

Birds of a feather flock together. 物以类聚，人以群分。

A bird's eye view 鸟瞰

Birth is much, but breeding is more. 教育重于门第。

Birthday suit 一丝不挂；赤身裸体

bite off more than one can chew 贪多嚼不烂

bite one's tongue off 后悔自己讲过的话

black and blue 轻一块，紫一块。

A black hen lays a white egg. 黑鸡生白蛋，丑妇生俊儿。

Black sheep 败家子；无用之辈

blaze the trail 开辟道路

bleed one white 榨干某人的血汗（或钱财）

blind alley 死胡同

Blood is thicker than water. 血浓于水

Blood will have blood. 血债要用血来偿

。 Blot on the landscape 杀风景

blow hot and cold 忽冷忽热；动摇不定

blow one's own trumpet 自吹自擂

blue ribbon 最高荣誉

a bolt from the blue 晴空霹雳

Books and friends should be few but good. 书和朋友要少而精。

The boot is on the other leg. 张冠李戴

born in the purple 出生豪门

born with a silver spoon in one's mouth 出身高贵

Box and Cox 轮流交换

Brains trust 智囊团

A brave man may fall but he cannot yield. 勇士可能会跌倒但不会屈服。

A brave retreat is a brave exploit. 勇敢的退却也是英勇的行为

breach of promise 毁约食言

bread and butter 生活必需品

Bread is the staff of life. 民以食为天。

Break a butterfly on a wheel 小题大做，杀鸡用牛刀

break one's words 说话不算话

break the ice 打破沉默

breath of life 不可缺少的东西

brevity is the soul of wit 言以简洁为贵

A bride will enter without knocking. 贿赂进屋，不用敲门。

The brighter the moon, the more the dogs howl. 月亮越明，狗叫得越凶。

Burn one's fingers 吃亏上当

bring something home to somebody 使某人认识到

bring the house down 博得满堂喝彩

bring owls to Athens 多此一举

build upon sand 建在沙上

bull in a china shop 瓷器店里的公牛

A bully is always a coward. 持强欺弱是懦夫

Buridan's ass 优柔寡断之人

burn the candle at both ends 一根蜡烛两头烧

burn one's boats (bridges) 破釜沉舟

burn the midnight oil 开夜车

A burnt child dreads the fire. 一朝被蛇咬，十年怕井绳。

Bury one's hand in the sand 鸵鸟政策

Busiest men find the most time. 盲人最会利用时间。

Business before pleasure. 先工作，后娱乐。

But me no buts. 别老对我说"但是"了

butterflies in one's stomach 紧张不安

by all means 尽力；一定

by a hair's breadth 几乎；差不多

by and large 总的说来，大体上

by hook or by crook 不择手段

by the book 有根据，照章办事

by leaps and bounds 大幅度的，飞速的

by no means 决不